red-lacquered sword sheath
Refers specifically to a sword scabbard coated in red lacquer, often associated with historical or samurai contexts.
I saw a beautiful sword with a red-lacquered sheath at the museum.
Compound of 朱 (しゅ, 'vermilion, red') and 鞘 (さや, 'sheath, scabbard'). The reading しゅざや follows standard on'yomi for 朱 and kun'yomi for 鞘.